Class Mammalia Linnaeus, 1758 - mammals
   Subclass Prototheria Gill, 1872 - monotremes
     Order Monotremata Bonaparte, 1837 - monotremes
       Family Tachyglossidae Gill, 1872 - spiny anteaters
         Genus Zaglossus Gill, 1877 - long-nosed echidna
           1 Zaglossus attenboroughi Flannery & Groves, 1998 - Sir David's long-beaked echidna
           2 Zaglossus bartoni (Thomas, 1907) - eastern long-beaked echidna
           3 Zaglossus bruijni (Peters & Doria, 1876) - western long-beaked echidna